Seed pairs documentary filmmaker Errol Morris and evolutionary psychologist MarcHauser in the latest in a series of dialogs in which representatives of the left and right hemispheres address Big Questions.

By way of suggesting an answer, the two cover a wide range of territory - from the Milgram experiments to game theory to what science can truly say about the human condition - and the biologist Hauser argues that our bodies do indeed code for a universal set of ethics. Give it a read.